Show simple item record

dc.contributor.advisorMoore, Richard W.
dc.contributor.authorThornton, Colin L.
dc.dateJune 2014
dc.date.accessioned2014-08-13T20:18:02Z
dc.date.available2014-08-13T20:18:02Z
dc.date.issued2014-06
dc.identifier.urihttp://hdl.handle.net/10945/42739
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractRossby wave trains (RWTs) are coherent envelopes of baroclinic waves that propagate on the midlatitude waveguide and are capable of producing downstream development. The waveguide is a region of heightened potential vorticity gradient along steeply sloping isentropic surfaces defining the mid-latitude jet stream. The goal of this research is to examine a climatology of objectively identified RWTs that result in downstream development over Europe, and to develop a methodology to subjectively determine the atmospheric phenomena responsible for triggering each. The purpose is to provide insight into the relative frequency of occurrence of RWTs triggered by each of four atmospheric disturbances over the North Atlantic to support future research into improving the predictability of waveguide perturbations and subsequent downstream development. A subset of RWTs is analyzed using dynamic tropopause, upper-level divergent outflow, sea level pressure, and Hovmöller plots. The RWT triggering mechanisms are identified and, when applicable, compared to known occurrences in climatology. Twenty-seven are (71%) are triggered by warm conveyor belts associated with extratropical cyclones, three (8%) by tropopause polar vortices, two (5%) by the extratropical transition of tropical cyclones, and six (16%) by diabatic Rossby vortices.en_US
dc.description.urihttp://archive.org/details/therelativefrequ1094542739
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United Statesen_US
dc.titleThe relative frequency of Rossby wave train triggering mechanisms associated with downstream development over europeen_US
dc.typeThesisen_US
dc.contributor.secondreaderHarr, Patrick A.
dc.contributor.departmentMeteorology
dc.subject.authorRossby wave trainen_US
dc.subject.authordownstream developmenten_US
dc.subject.authortropopause polar vortexen_US
dc.subject.authorwarm conveyor belten_US
dc.subject.authordiabatic Rossby vortexen_US
dc.subject.authorextratropical cycloneen_US
dc.subject.authorclimatologyen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameMaster of Science in Meteorology and Physical Oceanographyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMeteorology and Physical Oceanographyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record